A team of medical students doing internship have to assist during surgeries at a city hospital The probabilitiies of surgeries rated as very complex, complex, routine simple or very simple are 0.15, 0.20, 0.31, 0.26, 0.08. Find the probabilities that a particular surgery will be rated a) complex or very comples b)neither very complex nor very simple c)routine or complex d) routine or simple

A team of medical students doing their internship have to assist during surgeries at a city hospital. The probabilities of surgeries rated as very complex, complex, routine, simple or very simple are respectively, 0.15, 0.20, 0.31, 0.26, .08. Find the probabilities that a particular surgery will be rated (i) complex or very complex (ii) neither very complex nor very simple (iii) routine or complex (iv) routine or simple

A dry cell of emf 1.5V and internal resistance 0.10 Omega is connected across a resistor in series with a very low resistance ammeter: When the circuit is switched on, the ammter reading settles to a steady value of 2.0A. What is the steady (a) rate of chemical energy consumption of the cell, (b) rate of energy dissipation inside the cell, (c) rate of energy dissipation inside the resistor, (d) power output of the source?

A dry cell of emf 1.5V and internal resistance 0.10 Omega is connected across a resistor in series with a very low resistance ammeter: When the circuit is switched on, the ammter reading settles to a steady value of 2.0A. What is the steady (a) rate of chemical energy consumption of the cell, (b) rate of energy dissipation inside the cell, (c) rate of energy dissipation inside the resistor, (d) power output of the source?

When a situation demands our immediate action, it takes some time before we really respond. Reaction time is the time a person takes to observe, think and act. For example, if a person is driving and suddenly a boy appears on the road, then the time elapsed before he slams the brakes of the car is the reaction time. Reaction time depends on complexity of the situation and on an individual. You can measure your reaction time by a simple experiment. Take a ruler and ask your friend to drop it vertically through the gap between your thumb and forefinger . After you catch it, find the distance d travelled by the ruler. In a particular case, d was found to be 21.0 cm. Estimate reaction time.

Reaction time : When a situation demands our immediate action, it takes some time before we really respond. Reaction time is the time a person takes to observe, think and act. For example, if a person is driving and suddenly a boy appears on the road, then the time elapsed before he slams the brakes of the car is the reaction time. Reaction time depends on complexity of the situation and on an individual. You can measure your reaction time by a simple experiment. Take a ruler and ask your friend to drop it vertically through the gap between your thumb and forefinger (Fig.). After you catch it, find the distance d travelled by the ruler. In a particular case, d was found to be 21.0 cm. Estimate reaction time.